Worcester GREENSTAR HE combi Series, Installation And Servicing Instructions

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6 720 610 576 GB (03.02)
10
Details of the appliance
1.10 Technical data ZWB 7/11-30
ZWB 7-30 ZWB 11-30
Units Natural gas Propane
Max. rated heat output net 40/30˚C central heating
Max. rated heat output net 50/30˚C central heating
Max. rated heat output net 80/60˚C central heating kW
kW
kW 31.2
30.9
29.2 31.2
30.9
29.2
Max. rated heat input net kW 29.5 29.5
Min. rated heat output net 40/30˚C
Min. rated heat output net 50/30˚C
Min. rated heat output net 80/60˚C kW
kW
kW 8.4
8.3
7.4 11.6
11.4
10.5
Min. rated heat input net kW 7.6 10.8
Max. rated heat output net, domestic hot water kW 29.2 29.2
Max. rated heat input net, domestic hot water kW 29.5 29.5
Maximum gas flow rate – After 10 minutes from lighting
Natural gas G20 (CVnet 34.02 MJ/m
3
) m
3
/h 3.1 -
LPG (CVnet 88 MJ/m
3
) kg/h - 2.3
Gas supply pressure
Natural gas G20 (CVnet 34.02 MJ/m
3
) mbar 20 -
LPG (CVnet 88 MJ/m
3
) mbar - 37
Expansion vessel
Charge pressure
bar 0.75 0.75
Total capacity l 10 10
Hot water specifications
Hot water flow rate (factory setting)
l/min 8 8
Max. hot water flow rate l/min 14 14
Outlet temperature range ˚C 40 - 60 40 - 60
Max. permissible water supply pressure bar 10 10
Min. inlet pressure bar 0.2 0.2
Specific flow rate l/min 13.3 13.3
Flue
Flue gas temp. 80/60˚C, rated/min. load
˚C 67/55 67/55
Flue gas temp. 40/30˚C, rated/min. load ˚C 43/32 43/32
Residual delivery pressure
(inc. pressure drop in air intake duct)
Pa 80 80
CO
2
level at max. rated heat output
CO
2
level at min. rated heat output
%
% 9.2
8.8 10.8
10.5
NO
x
-class 5 5
SEDBUK figure, Band A % 90.6 90.6
Condensate
Max. condensation rate (t
R
= 30˚C) l/h 2.5 2.5
pH-value, approx. 4.8 4.8
General Data
Electrical power supply voltage
AC ... V 230 230
Frequency Hz 50 50
Max. power consumption W 106 106
Noise output level dB(A) 36 36
Appliance protection rating IP X4D X4D
Max. CH flow temperature ˚C nom. 90 nom. 90
Max. permissible operating pressure (CH) bar 2.5 2.5
Permissible ambient temperatures ˚C 0 - 50 0 - 50
Nominal capacity of appliance l 3.75 3.75
Weight (excluding packing) kg 46 46
Table 3